Over a million students use our free study notes to help them with their homework
Start with the definition of empirical formula so we know what we are trying to work out. Empirical formula is the simplest whole-number ratio of elements in a compound. First, l...
Draw the movement of electron through out the reaction. From explaining it as I go.
To test for chloride ions, add silver nitrate and a white precipitate should form, then add dilute ammonia and it should re-dissolve. For bromide ions, add silver nitrate and a cream precipitate should fo...
IR looks at how infrared light interacts with a molecule, measuring the vibration of atoms. Bonds are continuously vibrating and moving around, much like two balls connected by a spring. This spring syste...
An optical isomer is when a molecule has a 'non-superimposable mirror image'. This means that if you draw out its reflection, it is not the same as the original. A good example in daily life would be feet...
←
85
86
87
88
89
→
Internet Safety
Payment Security
Cyber
Essentials
